WATZ IT???
*It is a policy adopted by d network administrators to protect from unauthorised
usage of network and network accessible resources...
*Some provision is made in d underlying network structure for this purpose.
NETWORK SECURITY CONCEPTS
STEP 1:
It authenticates d users by one of the followin means
1>one factor authentication(user name&password
2>two factor authentication(security token)
3>three factor authentication(fingerprint,retinalscan)
STEP 2:
Now firewall checks for d access policies such as what services
are allowed for d authenticated user and enforces it.............
TOP 10 NETWORK SECURITY TOOLS:
1> Nessus : Premier UNIX vulnerability assessment tool 2>Wireshark : Sniffing the glue that holds the Internet together 3>Snort : Everyone's favorite open source IDS 4>Netcat : The network Swiss army knife 6>Hping2 : A network probing utility like ping on steroids 7> Kismet : A powerful wireless sniffer 8>Tcpdump : The classic sniffer for network monitoring and data acquisition 10>John the Ripper : A powerful, flexible, and fast multi-platform password hash cracker..................